1
turn/switch on the ignition
固定搭配，指转动钥匙或按下按钮点火。
Turn the ignition to start the engine.
转动点火开关以启动发动机。
点火；点燃；着火
ignitions — plural of ignition
先理解核心含义，再看它在真实句子里的用法。
点火；点燃；着火
the process of starting combustion or catching fire
Turn the ignition to start the engine.
转动点火开关以启动发动机。
点燃的行为。
The act of igniting.
引发燃烧或着火的过程
the process of initiating combustion or catching fire
燃烧的开始。
The initiation of combustion.
点燃内燃机燃料的机制
the mechanism that ignites the fuel in an internal-combustion engine
A single spark caused the ignition of the fuel, and the fire spread quickly.
一个火花导致燃料点燃，火势迅速蔓延。
The pilot waited for the engine ignition before starting the takeoff checklist.
飞行员在开始起飞检查单之前等待发动机点火。
The fire investigator explained how the ignition of the dry grass had begun.
火灾调查员解释了干草是如何开始着火的。
固定搭配，指转动钥匙或按下按钮点火。
Turn the ignition to start the engine.
转动点火开关以启动发动机。
ignition 作定语修饰名词，表示与点火相关的部件。
He lost the ignition key.
他弄丢了点火钥匙。
较正式用法，指某物的点燃或着火过程。
The ignition of the gas caused an explosion.
气体的点燃引发了爆炸。
Not this
I ignition the engine.
Use this
I ignite the engine.
ignition 是名词，不可用作动词，正确动词是 ignite 或 light。
Not this
Turn the ignition to start the car.
Use this
Turn on the ignition to start the car.
表示操作点火开关时，需用短语动词 turn on/off the ignition，直接说 turn the ignition 不自然且缺少介词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
点火钥匙
She turned the ignition key to start the car.
她转动点火钥匙来发动汽车。
点火开关
The ignition switch is on the right side of the steering wheel.
点火开关在方向盘右侧。
打开点火开关
He turned the ignition on and the engine started smoothly.
他打开点火开关，发动机平稳启动了。
点火系统
A faulty ignition system can cause the engine to misfire.
点火系统故障会导致发动机缺火。
点火源；火源
Keep flammable liquids away from any ignition source.
让易燃液体远离任何点火源。
点火线圈
The ignition coil converts the battery voltage to create a spark.
点火线圈将蓄电池电压转换以产生火花。
这是点火的混音版，刚从厨房里新鲜出炉。
Opening line of R. Kelly's 2002 hit 'Ignition (Remix)', often quoted in internet memes.
这是 R. Kelly 2002 年热门歌曲《Ignition (Remix)》的开头一句，常被网友用作网络梗。
Use ignitions naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆联想：ignite（点燃）去掉 e 加 -tion 成 ignition，想象火花塞一打火，引擎瞬间点燃启动。
语域：neutral 常见场景：汽车驾驶、机械维修、燃烧与火灾的技术说明 该词在普通语境中多为中性，常见于汽车驾驶、机械维修以及燃烧或火灾的技术描述中。日常使用多指汽车的点火装置或点火动作，正式文本中也可指燃烧的引发过程。
常用单数，如 turn the ignition key
Dictionary facts from ECDICT, WIKTIONARY.